Fixes a problem where the compiler is reporting the wrong size to the Gnu

runtime on 64-bit architectures.
Patch by David Chisnall

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68238 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CGObjCGNU.cpp b/lib/CodeGen/CGObjCGNU.cpp
index f1d43e9d121c06c38d0cfeda1b9742b64c5fad43..fc77c805f4266ecb3d79910a46def01199b54a07 100644 (file)
--- a/lib/CodeGen/CGObjCGNU.cpp
+++ b/lib/CodeGen/CGObjCGNU.cpp
@@ -969,8 +969,9 @@ llvm::Function *CGObjCGNU::ModuleInitFunction() {
   Elements.clear();
   // Runtime version used for compatibility checking.
   Elements.push_back(llvm::ConstantInt::get(LongTy, RuntimeVersion));
-  //FIXME: Should be sizeof(ModuleTy)
-  Elements.push_back(llvm::ConstantInt::get(LongTy, 16));
+  // sizeof(ModuleTy)
+  llvm::TargetData td = llvm::TargetData::TargetData(&TheModule);
+  Elements.push_back(llvm::ConstantInt::get(LongTy, td.getTypeSizeInBits(ModuleTy)/8));
   //FIXME: Should be the path to the file where this module was declared
   Elements.push_back(NULLPtr);
   Elements.push_back(SymTab);